公开(公告)号：US11805193B2

公开(公告)日：2023-10-31

申请号：US17066003

申请日：2020-10-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dean Cheng ,  Norman Finn

IPC: H04L69/40 ,  G06F16/27 ,  G06F16/23 ,  G06F11/10 ,  H04L45/02

CPC classification number: H04L69/40 ,  G06F11/1004 ,  G06F16/235 ,  G06F16/27 ,  H04L45/026

Abstract: A mechanism includes receiving, at a local node, a Hello message including an application identifier (AppId) and a target link between a target port for a local node and target port for a neighbor node. The local node determines the AppId is associated with an application for performing database synchronization. The local node sets up a local database in memory at the local node as part of a database pair for use by the application, the database pair including a neighbor database at the neighbor node. The local node associates the database pair with the target link. The local node controls synchronization of the local database with the neighbor database via the target link.

公开(公告)号：US11677671B2

公开(公告)日：2023-06-13

申请号：US17568165

申请日：2022-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tongtong Wang ,  Nan Li ,  Norman Finn

IPC: H04L1/00 ,  H04L47/283 ,  H04L47/62 ,  H04L49/25 ,  H04L49/00

CPC classification number: H04L47/283 ,  H04L47/621 ,  H04L49/252 ,  H04L49/3027

Abstract: A packet forwarding method includes receiving N Time-Sensitive Networking (TSN) packet flows, where each of the N TSN packet flows corresponds to a constraint condition that defines duration of a cycle, a maximum quantity of packets that are allowed to be transmitted in the cycle, and a maximum length of a single packet, and forwarding the N TSN packet flows based on a new constraint condition, where the new constraint condition is based on the constraint condition corresponding to each of the N TSN packet flows and defines duration of a new cycle, a new maximum quantity of new packets that are allowed to be transmitted in the new cycle, and a new maximum length of a new packet, where each of the N TSN packet flows is forwarded in a case in which a corresponding constraint condition is complied with.

公开(公告)号：US20220131809A1

公开(公告)日：2022-04-28

申请号：US17568165

申请日：2022-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tongtong Wang ,  Nan Li ,  Norman Finn

IPC: H04L47/283 ,  H04L47/62 ,  H04L49/25 ,  H04L49/00

Abstract: A packet forwarding method includes receiving N Time-Sensitive Networking (TSN) packet flows, where each of the N TSN packet flows corresponds to a constraint condition that defines duration of a cycle, a maximum quantity of packets that are allowed to be transmitted in the cycle, and a maximum length of a single packet, and forwarding the N TSN packet flows based on a new constraint condition, where the new constraint condition is based on the constraint condition corresponding to each of the N TSN packet flows and defines duration of a new cycle, a new maximum quantity of new packets that are allowed to be transmitted in the new cycle, and a new maximum length of a new packet, where each of the N TSN packet flows is forwarded in a case in which a corresponding constraint condition is complied with.

公开(公告)号：US20200259755A1

公开(公告)日：2020-08-13

申请号：US16861988

申请日：2020-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tongtong Wang ,  Nan Li ,  Norman Finn

IPC: H04L12/841 ,  H04L12/947 ,  H04L12/935 ,  H04L12/863

Abstract: A packet forwarding method includes receiving N Time-Sensitive Networking (TSN) packet flows, where each of the N TSN packet flows corresponds to a constraint condition that defines duration of a cycle, a maximum quantity of packets that are allowed to be transmitted in the cycle, and a maximum length of a single packet, and forwarding the N TSN packet flows based on a new constraint condition, where the new constraint condition is based on the constraint condition corresponding to each of the N TSN packet flows and defines duration of a new cycle, a new maximum quantity of new packets that are allowed to be transmitted in the new cycle, and a new maximum length of a new packet, where each of the N TSN packet flows is forwarded in a case in which a corresponding constraint condition is complied with.

公开(公告)号：US11799776B2

公开(公告)日：2023-10-24

申请号：US17367017

申请日：2021-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Norman Finn ,  Tongtong Wang ,  Lihao Chen

IPC: H04L12/24 ,  H04L45/74 ,  H04L1/00 ,  H04L12/46 ,  H04L45/00

CPC classification number: H04L45/74 ,  H04L1/0056 ,  H04L12/4645 ,  H04L45/66

Abstract: A network device receives an Ethernet frame, checks a destination media access control (MAC) address based on a first cyclic redundancy check (CRC) code, to determine whether an error occurs in the destination MAC address. If the network device determines that no error occurs in the destination MAC address, the network device forwards the Ethernet frame based on the destination MAC address. The Ethernet frame includes the destination MAC address, the first CRC code, and a payload, a parameter of the first CRC code includes the destination MAC address, and the parameter of the first CRC code does not include the payload.

公开(公告)号：US11245634B2

公开(公告)日：2022-02-08

申请号：US16861988

申请日：2020-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tongtong Wang ,  Nan Li ,  Norman Finn

IPC: H04L1/00 ,  H04L12/841 ,  H04L12/863 ,  H04L12/947 ,  H04L12/935

Abstract: A packet forwarding method includes receiving N Time-Sensitive Networking (TSN) packet flows, where each of the N TSN packet flows corresponds to a constraint condition that defines duration of a cycle, a maximum quantity of packets that are allowed to be transmitted in the cycle, and a maximum length of a single packet, and forwarding the N TSN packet flows based on a new constraint condition, where the new constraint condition is based on the constraint condition corresponding to each of the N TSN packet flows and defines duration of a new cycle, a new maximum quantity of new packets that are allowed to be transmitted in the new cycle, and a new maximum length of a new packet, where each of the N TSN packet flows is forwarded in a case in which a corresponding constraint condition is complied with.

公开(公告)号：US20210336881A1

公开(公告)日：2021-10-28

申请号：US17367017

申请日：2021-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Norman Finn ,  Tongtong Wang ,  Lihao Chen

IPC: H04L12/741 ,  H04L1/00 ,  H04L12/721 ,  H04L12/46

Abstract: A network device receives an Ethernet frame, checks a destination media access control (MAC) address based on a first cyclic redundancy check (CRC) code, to determine whether an error occurs in the destination MAC address. If the network device determines that no error occurs in the destination MAC address, the network device forwards the Ethernet frame based on the destination MAC address. The Ethernet frame includes the destination MAC address, the first CRC code, and a payload, a parameter of the first CRC code includes the destination MAC address, and the parameter of the first CRC code does not include the payload.

公开(公告)号：US20240048645A1

公开(公告)日：2024-02-08

申请号：US18487530

申请日：2023-10-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dean Cheng ,  Norman Finn

IPC: H04L69/40 ,  G06F11/10 ,  H04L45/02 ,  G06F16/27 ,  G06F16/23

CPC classification number: H04L69/40 ,  G06F11/1004 ,  H04L45/026 ,  G06F16/27 ,  G06F16/235

Abstract: A mechanism includes receiving, at a local node, a Hello message including an application identifier (AppId) and a target link between a target port for a local node and target port for a neighbor node. The local node determines the AppId is associated with an application for performing database synchronization. The local node sets up a local database in memory at the local node as part of a database pair for use by the application, the database pair including a neighbor database at the neighbor node. The local node associates the database pair with the target link. The local node controls synchronization of the local database with the neighbor database via the target link.

公开(公告)号：US20230328002A1

公开(公告)日：2023-10-12

申请号：US18336897

申请日：2023-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Norman Finn

IPC: H04L47/62 ,  H04L47/24 ,  H04L47/6295 ,  H04J3/06

CPC classification number: H04L47/622 ,  H04L47/24 ,  H04L47/6295 ,  H04J3/0658

Abstract: A method for communicating time sensitive data streams in a network. The method includes synchronizing queuing and transmission of data in a set of output buffers for buffering streams associated with a certain class of service. The method includes processing data packets of a stream using a cyclic flow meter, wherein the cyclic flow meter limits transfer of the data packets of the stream to the set of output buffers of the network node according to a predetermined amount per cycle based on an output frequency. The method includes transmitting, according to the output frequency, the data packets of the stream from a non-empty output buffer of the set of output buffers, and transferring the data packets of the stream from the cyclic flow meter to an empty output buffer of the set of output buffers.

公开(公告)号：US20210029228A1

公开(公告)日：2021-01-28

申请号：US17066003

申请日：2020-10-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dean Cheng ,  Norman Finn

IPC: H04L29/14 ,  G06F16/23 ,  G06F16/27 ,  G06F11/10 ,  H04L12/751

Abstract: A mechanism includes receiving, at a local node, a Hello message including an application identifier (AppId) and a target link between a target port for a local node and target port for a neighbor node. The local node determines the AppId is associated with an application for performing database synchronization. The local node sets up a local database in memory at the local node as part of a database pair for use by the application, the database pair including a neighbor database at the neighbor node. The local node associates the database pair with the target link. The local node controls synchronization of the local database with the neighbor database via the target link.